Home / 13,145.10-19,707.93-6,211.50

Finding the Fourth Proportional to 13,145.10, 19,707.93 and 6,211.50

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Solution

The fourth proportional to 13,145.10, 19,707.93 and 6,211.50 is: 9,312.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145.10 : 19,707.93 = 6,211.50 : x
  2. Step 2: Convert to fraction form
    13,145.10/19,707.93 = 6,211.50/x
  3. Step 3: Cross multiply
    13,145.10x = 19,707.93 × 6,211.50
  4. Step 4: Simplify right side
    13,145.10x = 122,415,807.20
  5. Step 5: Solve for x
    x = 122,415,807.20/13,145.10
  6. Step 6: Final answer
    x = 9,312.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.